$NetBSD: patch-GNUmakefile,v 1.1 2024/02/04 12:26:15 tm Exp $

Remove CC variable to support different compilers and correct naming.

--- GNUmakefile.orig    2021-07-10 20:22:54.000000000 +0000
+++ GNUmakefile
@@ -6,7 +6,6 @@ LUA_VERSION = 5.2
 LUA_PC      = lua-$(LUA_VERSION)
 LUA_LIBDIR  = $(shell pkg-config --variable=INSTALL_CMOD $(LUA_PC))

-CC          = c99
 CFLAGS     += -fPIC $(shell pkg-config --cflags $(LUA_PC)) -Wall -Wextra -pedantic -ggdb
 LDLIBS     += -lunbound
 LDFLAGS    += -shared